The incident happened at a house in Movilla Street, Newtownards, at about 22:30 GMT on Friday.

The device and a brick were thrown at the front window of the property. A window was smashed and there was scorch damage to a window sill.

A man in his 20s was in the house at the time but was not hurt. The local DUP MLA, Jonathan Bell, described the attack as "wrong and abhorrent".

The Strangford MLA said: "Nothing can justify this dangerous criminal behaviour and, while I believe there was no physical injuries, petrol bombs risk serious injury and death - they have no place whatsoever in our Newtownards society."